11-17-2011
You might be in a zone with virtual memory capping.
In any case, use "swap -s" to display your swap (a.k.a. virtual memory) usage. /tmp being reported as full is, when /tmp is mounted using tmpfs, just a side effect of memory exhaustion.
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LEARN ABOUT SUSE
mount_tmpfs
mount_tmpfs(1M) System Administration Commands mount_tmpfs(1M)
NAME
mount_tmpfs - mount tmpfs file systems
SYNOPSIS
mount [ -F tmpfs] [ -o specific_options] [-O] special mount_point
DESCRIPTION
tmpfs is a memory based file system which uses kernel resources relating to the VM system and page cache as a file system.
mount attaches a tmpfs file system to the file system hierarchy at the pathname location mount_point, which must already exist. If
mount_point has any contents prior to the mount operation, these remain hidden until the file system is once again unmounted. The
attributes (mode, owner, and group) of the root of the tmpfs filesystem are inherited from the underlying mount_point, provided that those
attributes are determinable. If not, the root's attributes are set to their default values.
The special argument is usually specified as swap but is in fact disregarded and assumed to be the virtual memory resources within the sys-
tem.
OPTIONS
-o specific_options Specify tmpfs file system specific options in a comma-separated list with no intervening spaces. If invalid options
are specified, a warning message is printed and the invalid options are ignored. The following options are avail-
able:
size=sz The sz argument controls the size of this particular tmpfs file system. If the argument is has a
`k' suffix, the number will be interpreted as a number of kilobytes. An `m' suffix will be inter-
preted as a number of megabytes. No suffix is interpreted as bytes. In all cases, the actual size
of the file system is the number of bytes specified, rounded up to the physical pagesize of the
system.
xattr | noxattr Allow or disallow the creation and manipulation of extended attributes. The default is xattr. See
fsattr(5) for a description of extended attributes.
-O Overlay mount. Allow the file system to be mounted over an existing mount point, making the underlying file system
inaccessible. If a mount is attempted on a pre-existing mount point without setting this flag, the mount will fail,
producing the errordevice busy.
FILES
/etc/mnttab Table of mounted file systems
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
mount(1M), mkdir(2), mount(2), open(2), umount(2), mnttab(4), attributes(5), fsattr(5), tmpfs(7FS)
NOTES
If the directory on which a file system is to be mounted is a symbolic link, the file system is mounted on the directory to which the sym-
bolic link refers, rather than on top of the symbolic link itself.
SunOS 5.10 24 Nov 2003 mount_tmpfs(1M)